Cardiorespiratory changes associated with micro-arousals during naps
The autonomic nervous system (ANS) and the central nervous system (CNS) interplay during sleep, particularly during phasic events such as micro-arousals, has been the subject of several studies. The underlying mechanisms of such relationship which remain unclear, specifically during daytime sleep, w...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Neurobiology of Sleep and Circadian Rhythms |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2451994423000056 |
| _version_ | 1797798687655591936 |
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| author | Elpidio Attoh-Mensah Ivan Igor-Gaez Lydie Vincent Nicolas Bessot Clément Nathou Olivier Etard |
| author_facet | Elpidio Attoh-Mensah Ivan Igor-Gaez Lydie Vincent Nicolas Bessot Clément Nathou Olivier Etard |
| author_sort | Elpidio Attoh-Mensah |
| collection | DOAJ |
| description | The autonomic nervous system (ANS) and the central nervous system (CNS) interplay during sleep, particularly during phasic events such as micro-arousals, has been the subject of several studies. The underlying mechanisms of such relationship which remain unclear, specifically during daytime sleep, were partly investigated in this study. Napping polysomnography was performed on two occasions at least one week apart in 15 healthy subjects. The following cardiorespiratory variables were extracted from the recordings: tachogram, pulse transit time (PTT), pulse wave amplitude, respiratory cycle amplitude, and frequency. Two experts first detected micro-arousal events, then, cardiorespiratory variables were averaged by 30-s epochs over 2 min centered on the onset of the micro-arousals. We found that in the 30 s preceding the arousal events as detected on the electroencephalogram (EEG) recordings, there was a decrease in tachogram, pulse wave amplitude, and PTT values while the respiratory amplitude increased. These changes were more prominent in stage N2 and N3 sleep than in stage N1. The present findings provide new insights into the autonomic changes during the pre-arousal period in daytime naps, as all the variables investigated suggest a sympathetic physiological origin for the changes. |
| first_indexed | 2024-03-13T04:08:37Z |
| format | Article |
| id | doaj.art-ac77f0347710430db26f70de0ccddb87 |
| institution | Directory Open Access Journal |
| issn | 2451-9944 |
| language | English |
| last_indexed | 2024-03-13T04:08:37Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Neurobiology of Sleep and Circadian Rhythms |
| spelling | doaj.art-ac77f0347710430db26f70de0ccddb872023-06-21T06:58:43ZengElsevierNeurobiology of Sleep and Circadian Rhythms2451-99442023-05-0114100093Cardiorespiratory changes associated with micro-arousals during napsElpidio Attoh-Mensah0Ivan Igor-Gaez1Lydie Vincent2Nicolas Bessot3Clément Nathou4Olivier Etard5Corresponding author. 2 rue des Rochambelles, CS 14032 14 032, Caen, Cedex, France.; Normandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU de Caen, 14000, Caen, FranceNormandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU de Caen, 14000, Caen, FranceNormandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU de Caen, 14000, Caen, FranceNormandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU de Caen, 14000, Caen, FranceNormandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU de Caen, 14000, Caen, FranceNormandie Université, UNICAEN, INSERM, COMETE, CYCERON, CHU de Caen, 14000, Caen, FranceThe autonomic nervous system (ANS) and the central nervous system (CNS) interplay during sleep, particularly during phasic events such as micro-arousals, has been the subject of several studies. The underlying mechanisms of such relationship which remain unclear, specifically during daytime sleep, were partly investigated in this study. Napping polysomnography was performed on two occasions at least one week apart in 15 healthy subjects. The following cardiorespiratory variables were extracted from the recordings: tachogram, pulse transit time (PTT), pulse wave amplitude, respiratory cycle amplitude, and frequency. Two experts first detected micro-arousal events, then, cardiorespiratory variables were averaged by 30-s epochs over 2 min centered on the onset of the micro-arousals. We found that in the 30 s preceding the arousal events as detected on the electroencephalogram (EEG) recordings, there was a decrease in tachogram, pulse wave amplitude, and PTT values while the respiratory amplitude increased. These changes were more prominent in stage N2 and N3 sleep than in stage N1. The present findings provide new insights into the autonomic changes during the pre-arousal period in daytime naps, as all the variables investigated suggest a sympathetic physiological origin for the changes.http://www.sciencedirect.com/science/article/pii/S2451994423000056Micro-arousalsNapsDaytime sleepAutonomic activationCardiorespiratory outcome |
| spellingShingle | Elpidio Attoh-Mensah Ivan Igor-Gaez Lydie Vincent Nicolas Bessot Clément Nathou Olivier Etard Cardiorespiratory changes associated with micro-arousals during naps Neurobiology of Sleep and Circadian Rhythms Micro-arousals Naps Daytime sleep Autonomic activation Cardiorespiratory outcome |
| title | Cardiorespiratory changes associated with micro-arousals during naps |
| title_full | Cardiorespiratory changes associated with micro-arousals during naps |
| title_fullStr | Cardiorespiratory changes associated with micro-arousals during naps |
| title_full_unstemmed | Cardiorespiratory changes associated with micro-arousals during naps |
| title_short | Cardiorespiratory changes associated with micro-arousals during naps |
| title_sort | cardiorespiratory changes associated with micro arousals during naps |
| topic | Micro-arousals Naps Daytime sleep Autonomic activation Cardiorespiratory outcome |
| url | http://www.sciencedirect.com/science/article/pii/S2451994423000056 |
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